Gunners star Kai Havertz is set to return to Leverkusen after playing for the Bundesliga club between 2016 and 2020, ahead of his move to Chelsea.
Rolfes added: "Yes, we are in contact sometimes, I’ve already texted him so I’m sure he’ll need a lot of tickets as he comes from here, so there will certainly be contact.
"And then it’s also nice when he went to Chelsea during Covid, it was a big farewell for us, the whole transfer was the basis for the next few years and he really left something here.
"Because of Covid there was never the environment, the opportunity to say goodbye to him, even if we saw each other afterwards. But now I think it’s a very special setting for him to come back to the BayArena and for Piero [Hincapie] too, of course. He’s still officially our player and is only on loan at the moment but it will come to the transfer and I think for Piero it’s just as special too."